ΜΝΗΜΟΣΥΝΗ Mnemosyne was actually used by Warburg first as a motto and then as a title, and it is still visible, in Greek characters, over the entrance to the Library in Hamburg

Abraham Moritz Warburg, known as Aby Warburg, was a German art historian and cultural theorist who founded a private Library for Cultural Studies, the Kulturwissenschaftliche Bibliothek Warburg, later Warburg Institute.